31 replies to this topic

[nomininolife]

What would be the ideal turbo engine build-up from scratch if you were to build one for the road? i.e pistons,comp ratio, cam etc?

Regards

David

[Turbo Phil]

Reliable fast road Turbo motor -
A+ block {surface ground}, +.20 rebore Omega cast Turbo pistons, A+ rods & crank {reground if needed}, lightened steel flywheel and backplate, grey diaphragm + rally/race plate, Piper phase 2 cam, duplex chain, Avonbar Turbo oil pump, modified head {36/29 valves}, standard Payen Turbo gasket, A+ "Y" head studs {head & block tapped for 10th & 11th studs}, Trannex twin pin diff, sc drops, standard box fully rebuilt {properly !!} & a good intercooler.

Providing it's built properly a decent Turbo motor as above, will be a reliable road engine capable of 130+hp and thousands of miles. A well built engine is the key to reliability, not just a load of fancy parts !

Now if moneys no object, and you want an all out monster, well ..........................

Phil. :grin:

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•  forged_piston_on_rod.JPG   0bytes   3 downloads

[nomininolife]

Fantastic

Thanks Phil

[mighty_mini]

hey phil, where is the best place for pistons? ive been equiring about the budget turbo pistons from minispeed. but if im more interested in the +40 cast omega's.. which are £250 inc vat

[Turbo Phil]

I know MED do Omegas, not sure if they do a +.40 Turbo though ? Minispares "Mega" pistons are also worh a look.

Phil. :grin:

[mighty_mini]

Decisions, Decisions... Any Idea's people?



PISTON METRO TURBO MEGA 9.4cr +40 ONLY 9.38cc DISH P22357-40

£210

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[mighty_mini]

...

Minispeed

Turbo 9.4cr with 11.3cc dish available in 40. P22357S


£235

No Picture..

Surely the second ones would be better in +040 because they hasve a bigger dish..

which = lower CR and more boost can be applied ?

[AlexF2003]

you need to quote the part number...

alex

[1991Cooper]

Dave i've got some +40 pistons that might be suitable

I'll get the part number and a photo if you want?

[mighty_mini]

'AVE EM UP... LETS HAVE A BUTCHERS.

[1991Cooper]

I finish at 4pm so i'll do it as soon as I get home!

Ain't making no promises! As you know my mechanical knowledge is that of you average Organic Banana but they defo ain't a standard dish. I hope!!!!

I'll MSN it up if you around about then and if they are right well talk prices, because i'm down in Plymouth from the 27th so might be able to save ya on postage!

[1991Cooper]

The only marking I can see on them are

Around the rim; 71.588
and the .040"

In the dish Sp 0.04 and Y5A and after that a crazy squiqle

Picture soon just gotta get some batteries

Anyone know?

[AlexF2003]

the number is usually cast into the INSIDE of the piston when you look from underneath!

alex

[1991Cooper]

it's a bit of a dirty little begger! I'll clean it up 2morrow if I get a chance! Do I need to take the rod off to see it?

[AlexF2003]

nope,

it could well be somthing like 20831


alex